FLCIR

ofdm 介绍的文章，含原理与实例论证（含图） ，附件中是仿真代码，可单步跟踪查看，很好的学习资料(OFDM introduction of the article, including theory and examples of argumentation (including map), the annex is the simulation code, can single-step tracking of view, a very good learning materials)

This code applies local histogram equalization on an input image with a view to improve its contrast ratio. The image is read, converted to grayscale and resized with the inbuilt function of MATLAB. The window size may be changed, however, the window shift is pixel by pixel. The output is definitely a better contrast image as compared to the input but checkerboard effect is evident.

现需要在高度为600~700KM范围内，回归周期为30天的太阳同步轨道上布置一颗L波段的合成孔径雷达卫星。 1. 请设计合适的轨道参数，并仿真对应轨道下一个运行周期内星下点轨迹图（纬度和经度两个图）； 2. 计算多普勒中心频率，多普勒调频率与纬度的关系图（设姿态角为0°，天线视角20°~60°，推荐35°）； 3. 按高斯投影方式，将星下点轨迹图投影到地图坐标上。(Now requires a height of 600 ~ 700KM range, return period of 30 days are arranged on a sun-synchronous orbit L-band Synthetic Aperture Radar satellites. 1 Please design the appropriate orbital parameters and simulate the corresponding orbit within the next operating cycle nadir trajectories (latitude and longitude two graphs) 2. Calculate the Doppler center frequency, Doppler frequency and the relationship between latitude Figure (set attitude angle is 0, the antenna angle of 20 to 60, recommended 35) 3 Press Gauss projection, the nadir trajectories projected onto the map coordinates.)

neural network classification

可以读取GprMax探底雷达正演模拟的3d模型的数据的两个个matlab的M函数(3d model data can read GprMax bottom radar forward modeling function of Matlab M-)

说明：  自适应中值滤波算法，可以用于图像去噪，比传统的中值滤波效果更好，运行时间更短(Adaptive median filter algorithm can be used for image denoising, than the traditional median filter is better, shorter running time)

实现快速傅里叶变换的控制台程序，对用户输入的数组做变换。(Fast Fourier transform console program, to an array of user input to make change.)

说明：  matlab下的kalman实现，内附详细的解释，有助于初学者学习，望高手免进(matlab kalman under implementation, containing a detailed explanation to help beginners learn to avoid looking into the master)

学习电力电子必须完成仿真，三相不可控整流电路的MATLAB仿真(Learning must be completed power electronics simulation, three-phase controlled rectifier circuits MATLAB simulation)

分类和回归的工具箱，很好用，精确度很高，我自己很喜欢这个(Classification and regression of the toolbox, useful, high accuracy, I really like this)